R.V.R. Elettronica PTRL-NV/2/HP/S3, Техническое руководство

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R.V.R. ELETTRONICA S.r.l. (BO) Pag. 45
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
2) Generate an R.F. carrier at operating frequency and -67 dBm;
modulate the carrier with a 400 Hz tone with a ±75 KHz deviation.
Inject the resultant R.F. signal into the receiver input.
3) Using the FAM modulation analyzer, check that the S/N ratio of the
RXRL-NV/a receiver is better than 65 dB, referred to a deviation
of ±100 KHz.
4) Connect the instruments as shown in SETUP B2 (Fig.10) to make
the STEREO measurement.
5) Adjust the signal generator output for a level of 1mV (the carrier
and deviation will remain constant).
6) Use the modulation analyzer to make the S/N measurement and check
that the figure is better than 60 dB for the RXRL-NV.
SETUP B1 / FIG. 9
SETUP B2 / FIG. 10